BMW X5 Owners & Service Manuals

BMW X5: Oil Sump


IMPORTANT: Aluminium-magnesium materials.

No steel screws/bolts may be used due to the threat of electrochemical corrosion.

A magnesium crankcase requires aluminium screws/bolts exclusively.

Aluminium screws/bolts must be replaced each time they are released.

The end faces of aluminium screws/bolts are painted blue for the purposes of reliable identification.

Jointing torque and angle of rotation must be observed without fail.

Risk of damage!

Necessary preliminary tasks:

Release screw (1) from grounding cable (2) on right bearing block (3).

Lay grounding cable (2) to one side.

Oil Sump
Fig. 52: Grounding Cable, Bearing Block And Screw

NOTE: Picture shows an E92 by way of example. Other model series may differ in certain details.

Unclip electric leads (2) of oxygen monitor sensors from holder (3).

Disconnect plug connections (1) of oxygen monitor sensors and lay to one side.

Release bolts (5) on transmission.

Tightening torque: 11 13 5AZ.

Disconnect plug connection (4) on oil level sensor.

Lay holder (3) to one side.

Oil Sump
Fig. 53: Plug Connections, Holder, Electric Leads And Bolts

For vehicles with optional extra SA205 (automatic transmission):

NOTE: Transmission fluid cooler lines (2) (supply and return) are secured to the oil sump with two holders (3).

If necessary, release oil pump and lay to one side.

Unscrew nuts (1).

Tightening torque: 11 13 6AZ.

Release holders (3) with transmission fluid cooler lines (2) from oil sump guides.

Oil Sump
Fig. 54: Fluid Cooler Lines, Holders And Nuts

For all vehicles:

NOTE: For purposes of clarity, the picture shows the front axle carrier and stabilizer bar removed.

Unscrew nut (3).

Tightening torque: 11 13 7AZ.

Release screw (2).

Tightening torque: 11 13 8AZ.

Release both holders with coolant hose (1) from oil sump guide.

Oil Sump
Fig. 55: Coolant Hose, Screw And Nut

IMPORTANT: Bolts of oil sump have different lengths.

Observe different tightening torques.

Release bolts along line (1).

Tightening torque: 11 13 2AZ.

Tightening torque: 11 13 3AZ.


Replace aluminium screws.

If necessary, remove oil level sensor (2) and right bearing block (3).

Oil Sump
Fig. 56: Oil Level Sensor And Bearing Block

IMPORTANT: There must be no adhesive residues in the bedplate retaining threads.

Clean retaining threads.


Replace all seals.

Assemble engine.


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